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A member asked:

How to know if a digital blood pressure machine is accurate?

A doctor has provided 1 answer
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

If your doctor uses a reliable manual sphymomanometer, you can bring your digital manometer in for comparison and I have done that many times for my patients. The difference of +/- 10 mmHg for systolic pressure and +/- 5 mmHg for diastolic pressure is adequate for home monitoring. Manual manometers of Tycos or Welch Allyn brand are reliable.

Answered 2/10/2023

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